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349604031 = 3717979283
BaseRepresentation
bin10100110101101…
…000100010111111
3220100211201120110
4110311220202333
51203444312111
654405121103
711443404510
oct2465504277
9810751513
10349604031
1116a384757
12990b9193
1357577bba
1434606a07
1520a5b5a6
hex14d688bf

349604031 has 16 divisors (see below), whose sum is σ = 564067584. Its totient is φ = 188022144.

The previous prime is 349604029. The next prime is 349604053. The reversal of 349604031 is 130406943.

It is not a de Polignac number, because 349604031 - 21 = 349604029 is a prime.

It is a super-2 number, since 2×3496040312 = 244445956982897922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 349604031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349604131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489285 + ... + 489998.

It is an arithmetic number, because the mean of its divisors is an integer number (35254224).

Almost surely, 2349604031 is an apocalyptic number.

349604031 is a deficient number, since it is larger than the sum of its proper divisors (214463553).

349604031 is a wasteful number, since it uses less digits than its factorization.

349604031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979310.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 349604031 is about 18697.7012223428. The cubic root of 349604031 is about 704.4640098891.

The spelling of 349604031 in words is "three hundred forty-nine million, six hundred four thousand, thirty-one".

Divisors: 1 3 7 17 21 51 119 357 979283 2937849 6854981 16647811 20564943 49943433 116534677 349604031